Don't need explanation just showing quick work and answer.

Thinking 2]. Given 3? = (2, 5). J7 = (-5, 12) find the scalar projection of If on i [2 Marks] 22. If (-1, 3, 5) x (O, a, 1) = (-2, 1, -1), determine a. |2 Marks] 23. Given {1 = [1, 7, 9] 3) Find the angle bee}